9 th Ruhuna International Science and Technology Conference https://www.sci.ruh.ac.lk/conference/ristcon2022/index.php RISTCON 2022 is organized by the Faculty of Science, University of Ruhuna, Sri Lanka. This conference aims to provide the premier multidisciplinary forum for leading academics, researchers, and research students to present and discuss their innovations, concerns, practical challenges encountered, and the solutions adopted in the fields of Science Technology. Important Dates Initial Submission Deadline September 30, 2021 Notification of Acceptance November 15, 2021 Submission of camera-ready Abstract December 01, 2021 https://www.sci.ruh.ac.lk/conference/ristcon2022/index.php https://www.sci.ruh.ac.lk/conference/ristcon2022/index.php https://www.sci.ruh.ac.lk/conference/ristcon2022/index.php